Zobrazeno 1 - 10
of 110
pro vyhledávání: '"Lennon, Daniel"'
Publikováno v:
A&A 690, A135 (2024)
The evolution and fate of massive stars are thought to be affected by rotationally induced internal mixing. The surface boron abundance is a sensitive tracer of this in early B-type main sequence stars. We test current stellar evolution models of mas
Externí odkaz:
http://arxiv.org/abs/2405.18266
Autor:
Gordon, Karl D., Fitzpatrick, E. L., Massa, Derck, Bohlin, Ralph, Chastenet, Jeremy, Murray, Claire E., Clayton, Geoffrey C., Lennon, Daniel J., Misselt, Karl A., Sandstrom, Karin
The Small Magellanic Cloud (SMC) shows a large variation in ultraviolet (UV) dust extinction curves, ranging from Milky Way-like (MW) to significantly steeper curves with no detectable 2175 A bump. This result is based on a sample of only nine sightl
Externí odkaz:
http://arxiv.org/abs/2405.12792
Autor:
Proffitt, Charles R., Jin, Harim, Daflon, Simone, Lennon, Daniel J., Langer, Norbert, Cunha, Katia, Monroe, Talawanda
New boron abundances or upper limits have been determined for 8 early-B stars in the young Galactic open cluster NGC 3293, using ultraviolet spectra obtained by the Hubble Space Telescope Cosmic Origins Spectrograph. With previous observations, there
Externí odkaz:
http://arxiv.org/abs/2401.12918
Autor:
Menon, Athira, Ercolino, Andrea, Urbaneja, Miguel A., Lennon, Daniel J., Herrero, Artemio, Hirai, Ryosuke, Langer, Norbert, Schootemeijer, Abel, Chatzopoulos, Emmanouil, Frank, Juhan, Shiber, Sagiv
Blue supergiants are the brightest stars in their host galaxies and yet their evolutionary status has been a long-standing problem in stellar astrophysics. In this pioneering work, we present a large sample of 59 early B-type supergiants in the Large
Externí odkaz:
http://arxiv.org/abs/2311.05581
Autor:
Shenar, Tomer, Sana, Hugues, Mahy, Laurent, El-Badry, Kareem, Marchant, Pablo, Langer, Norbert, Hawcroft, Calum, Fabry, Matthias, Sen, Koushik, Almeida, Leonardo A., Abdul-Masih, Michael, Bodensteiner, Julia, Crowther, Paul A., Gieles, Mark, Gromadzki, Mariusz, Henault-Brunet, Vincent, Herrero, Artemio, de Koter, Alex, Iwanek, Patryk, Kozłowski, Szymon, Lennon, Daniel J., Apellaniz, Jesus Maız, Mroz, Przemysław, Moffat, Anthony F. J., Picco, Annachiara, Pietrukowicz, Paweł, Poleski, Radosław, Rybicki, Krzysztof, Schneider, Fabian R. N., Skowron, Dorota M., Skowron, Jan, Soszynski, Igor, Szymanski, Michał K., Toonen, Silvia, Udalski, Andrzej, Ulaczyk, Krzysztof, Vink, Jorick S., Wrona, Marcin
Stellar-mass black holes are the final remnants of stars born with more than 15 solar masses. Billions are expected to reside in the Local Group, yet only few are known, mostly detected through X-rays emitted as they accrete material from a companion
Externí odkaz:
http://arxiv.org/abs/2207.07675
Autor:
Libralato, Mattia, Lennon, Daniel J., Bellini, Andrea, van der Marel, Roeland, Clark, Simon J., Najarro, Francisco, Patrick, Lee R., Anderson, Jay, Bedin, Luigi R., Crowther, Paul A., de Mink, Selma E., Evans, Christopher J., Platais, Imants, Sabbi, Elena, Sohn, Sangmo Tony
The presence of massive stars (MSs) in the region close to the Galactic Center (GC) poses several questions about their origin. The harsh environment of the GC favors specific formation scenarios, each of which should imprint characteristic kinematic
Externí odkaz:
http://arxiv.org/abs/2010.10964
Autor:
Bestenlehner, Joachim M., Crowther, Paul A., Caballero-Nieves, Saida M., Schneider, Fabian R. N., Simon-Diaz, Sergio, Brands, Sarah A., de Koter, Alex, Graefener, Goetz, Herrero, Artemio, Langer, Norbert, Lennon, Daniel J., Apellaniz, Jesus Maiz, Puls, Joachim, Vink, Jorick S.
We present an optical analysis of 55 members of R136, the central cluster in the Tarantula Nebula of the Large Magellanic Cloud. Our sample was observed with STIS aboard the Hubble Space Telescope, is complete down to about 40\,$M_{\odot}$, and inclu
Externí odkaz:
http://arxiv.org/abs/2009.05136
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Autor:
Ksoll, Victor F., Gouliermis, Dimitrios A., Klessen, Ralf S., Grebel, Eva K., Sabbi, Elena, Anderson, Jay, Lennon, Daniel J., Cignoni, Michele, de Marchi, Guido, Smith, Linda J., Tosi, Monica, van der Marel, Roeland P.
The Hubble Tarantula Treasury Project (HTTP) has provided an unprecedented photometric coverage of the entire star-burst region of 30 Doradus down to the half Solar mass limit. We use the deep stellar catalogue of HTTP to identify all the pre--main-s
Externí odkaz:
http://arxiv.org/abs/1805.07157
Autor:
Garcia, Miriam, Herrero, Artemio, Najarro, Francisco, Camacho, Ines, Lennon, Daniel J., Urbaneja, Miguel A., Castro, Norberto
The double distance and metallicity frontier marked by the SMC has been finally broken with the aid of powerful multi-object spectrographs installed at 8-10m class telescopes. VLT, GTC and Keck have enabled studies of massive stars in dwarf irregular
Externí odkaz:
http://arxiv.org/abs/1703.00218